In Designing without Tables, the main example in the Code_Archive (the footbags site) does not display correctly in MSIE 5.0 (with service packs)

The "sponsor" div ends up on the left of the page, as if the margin-left is being ignored.

While my cold-hearted response is to tell those who complain to upgrade their browsers, I did not see anything in the documentation in the book to indicate that there would be an incompatibility with any of the css in that example and MSIE 5.

Does anyone know if it IS because of the left-margin? Would there be any work-around that allowed the page to display correctly?